679355378 has 16 divisors (see below), whose sum is σ = 1118128536. Its totient is φ = 307632000.

The previous prime is 679355371. The next prime is 679355407. The reversal of 679355378 is 873553976.

It can be written as a sum of positive squares in 4 ways, for example, as 666517489 + 12837889 = 25817^2 + 3583^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (679355371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245123 + ... + 247878.

Almost surely, 2^679355378 is an apocalyptic number.

679355378 is a deficient number, since it is larger than the sum of its proper divisors (438773158).

679355378 is a wasteful number, since it uses less digits than its factorization.

679355378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493069.

The product of its digits is 4762800, while the sum is 53.

The square root of 679355378 is about 26064.4466275423. The cubic root of 679355378 is about 879.0879747041.

The spelling of 679355378 in words is "six hundred seventy-nine million, three hundred fifty-five thousand, three hundred seventy-eight".